Last Updated: October 7, 2026
The term “fool’s gold” can be used to describe any substance that people mistake for real gold. Minerals like chalcopyrite, mica, pyrrhotite, marcasite, and pyrite have all been mistaken for gold – but pyrite (FeS₂) is the most common culprit. Here’s everything you need to know about pyrite and how to distinguish fool’s gold from the real deal.
Pyrite occurs naturally in a variety of geological settings, including:
- Rocks (igneous, sedimentary, and metamorphic)
- Hydrothermal veins associated with various types of ore deposits – including gold, copper, and lead-zinc deposits
- Coal deposits, where it forms as result of organic matter decomposition and subsequent mineralization
Many gold prospectors have encountered fool’s gold over the years, as pyrite and gold often form in similar geological settings. The term “fool’s gold” gained prominence during the California Gold Rush when an influx of eager, inexperienced miners mistook pyrite for real gold. To the untrained eye, gold and pyrite can look similar.
How to Distinguish Fool’s Gold from Real Gold
Simple observation is the first step in differentiating pyrite (or another mineral) from true gold. Pyrite has more of a brassy yellow color, whereas gold is a true golden, buttery yellow. Also, since gold is often naturally alloyed with a small amount of silver, its luster can appear lighter and slightly whiter in some cases.
Differences in shape and structure are important as well. Pyrite typically forms in cubic, octahedral, or pyritohedral (12-sided) crystals with well-defined edges, giving it a geometric and blocky-looking structure. Unlike pyrite, gold ore lacks distinct crystal faces and instead forms as flakes, grains, or nuggets with more rounded, irregularly-shaped edges.
Tests to Identify Fool’s Gold
According to the U.S. Geological Survey, the “fool’s gold” minerals (pyrite, chalcopyrite and mica) will crumble when poked with a metal point, as they tend to be brittle. Real gold, on the other hand, will gouge or indent because it’s naturally soft and malleable.
You can also use a piece of unglazed porcelain to perform a scrape test. Real gold will leave a golden yellow streak when scraped against the porcelain, whereas pyrite and chalcopyrite will leave dark green/blackish streaks, and the common micas will leave white streaks.
Is Fool’s Gold Magnetic?
Like real gold, pyrite is not naturally magnetic. However, scientists have discovered a way to electrically transform pyrite into a magnetic material! This is the first time that a non-magnetic substance has been electrically transformed into a magnetic one, potentially paving the way for the creation of valuable new magnetic materials for more energy-efficient computer memory components.
Also noteworthy: magnets are often used to test the authenticity of gold jewelry. However, because some gold alloys contain magnetic metals, this test is not always reliable.
How Much Is Fool’s Gold Worth?
Pyrite has little to no monetary value. However, it has still proved itself useful in other ways. Some even say that pyrite is the mineral that built the modern world, as it helped ancient civilizations light fires. Pyrite produces sparks when struck against hard materials like steel or flint.
Pyrite’s Industrial Uses
Pyrite is a major source of sulfur, the basic constituent of sulfuric acid – one of the most important industrial chemicals on earth. More sulfuric acid is made each year than any other manufactured chemical! It’s used in fertilizer production, petroleum refining, chemical manufacturing, batteries, water treatment, textiles, cleaning products and more.
Pyrite also holds some exciting potential in the electronics industry. Unlike gold and silver, which are great electrical conductors, pyrite is a semiconductor. As such, pyrite can control the flow of electricity, switching between conducting it and blocking it, depending on certain conditions like light or electric fields.
Researchers are currently exploring pyrite’s use in solar panels. Pyrite’s absorption coefficient is about two orders of magnitude higher than silicon’s, the main solar material today, which means a layer only about 40 nanometers thick can absorb more than 90% of incoming light. Pyrite is also cheaper and more abundant than silicon, which could mean lower production costs. (Side note: silver is also used in solar technology.)
Follow the Pyrite, Find the Gold?
Some gold prospectors see pyrite as a clue that there’s real gold nearby, because pyrite and real gold nuggets tend to form under similar geological conditions. From a gold mining perspective, though, pyrite itself is practically worthless.
Many pyrite deposits technically do contain real gold, albeit in minuscule concentrations. On average, pyrite contains about 0.25 parts per million (ppm) of gold, which is equivalent to 0.25 grams of gold per 1 million grams of pyrite. The gold within pyrite is usually such a small amount that it’s simply not worth extracting.
For comparison, gold ores extracted by mining companies typically have concentrations ranging from 1 to 5 ppm, which makes them more economically suitable for extraction.
Refining Real Gold (and Other Precious Metals)
While we’re interested in fool’s gold and many minerals from an educational perspective, Garfield Refining only purchases precious metals – gold, silver, platinum and palladium – in the form of scrap material such as jewelry, dental scrap, watches, coins, flatware and the like.
We’d love to see a photo of your fool’s gold (connect with us on Instagram!), but we cannot accept pyrite, iron, copper, or anything else besides precious metal scrap material. If you do, however, have precious metal scrap that you’re looking to sell, we’ve got you covered. In fact, we offer the highest payments and best service in the industry.
Frequently Asked Questions
Is fool’s gold worth anything?
Pyrite itself has essentially no monetary value, unlike real gold. Its worth is industrial: it’s a source of sulfur for making sulfuric acid, and researchers are exploring it for solar panels and electronics. Garfield Refining doesn’t buy pyrite, only precious metal scrap like gold, silver, platinum and palladium.
Does fool’s gold stick to a magnet?
No. Pyrite isn’t significantly magnetic, and neither is real gold, so a magnet test alone won’t tell them apart. Magnet tests are more useful for ruling out magnetite, a different iron mineral sometimes mistaken for gold, which does respond strongly to a magnet.
Ready to refine your precious metals? Look no further than Garfield, America’s trusted refinery since 1892. Learn more about what we buy.
Written by
Allie BowmanAllie Bowman is the Content Lead at Garfield Refining, where she translates 134 years of precious metals expertise into clear, accurate, and practical content for individual sellers, dental professionals, jewelers, and collectors. A Dean's List graduate of the University of Delaware's Media Communication program, Allie has built her career around making complex subjects accessible to a broad audience. Her experience spans nutrition science, lifestyle magazine publishing, and precious metals refining, giving her a unique ability to transform technical information into engaging, trustworthy content. At Garfield, Allie brings editorial rigor and subject-matter expertise to every piece she produces. She works closely with Garfield's refining specialists and senior leadership to ensure that technical topics - from karat markings and assay methods to precious metals markets and spot price mechanics - are explained with both accuracy and clarity. Since joining Garfield's marketing team, Allie has written extensively on precious metals refining, dental scrap recovery, gold and silver bullion, estate and inherited jewelry, and industry-specific topics for dental and jewelry professionals. All content is reviewed by Garfield's leadership team prior to publication, ensuring it reflects the company's standards for accuracy, transparency, and industry expertise.
Reviewed by
Morgan KerrisseyMorgan Kerrissey is the President of Garfield Refining, one of North America's most longstanding and trusted precious metals refineries. For over two decades, Morgan has built his career at the intersection of commodities markets, metallurgy, and precious metals — earning a reputation as one of the most knowledgeable voices in the refining industry. Morgan joined Garfield in 2008, bringing rigorous operational discipline to a company built on exacting standards since 1892. Named President in 2014, he has guided Garfield through volatile gold, silver, and palladium markets, while modernizing its workforce and technologies and diversifying its metal supply chains. Under his leadership, Garfield has expanded its refining capabilities across the full lifecycle of precious metals recovery, entered new markets, and expanded services while maintaining the same customer forward approach that has made Garfield a mainstay for more than a century. From hedging strategy to daily refinery operations, Morgan commands high levels of technical depth and market fluency. Morgan grew up outside Boston, graduated from Harvard University, and has lived with his family in Philadelphia, PA for almost 20 years.